William S Dworzan

6775940, Aug 17, 2004

Feb 14, 2003

10/369088

William S. Dworzan - Santa Ana CA
Lawrence J. Zadra - Laguna Hills CA

S/R Industries, Inc. - Huntington Beach CA

F41A 953

42 101, 42 54, 42 7001, 42106

A safety device for use with a toy guns, less-lethal guns (such as non-powdered guns) and lethal guns detects motion of the gun, and causes light emitting diodes or other light sources incorporated into the gun to prominently flash. The flashing light sources alert bystanders in a way that distinguishes lethal firearms from toy guns and less-lethal guns. The flashing diodes can also be activated when the gun is armed, cocked or otherwise ready to be fired. Motion is detected through the use of an electric circuit that includes a spring, an oscillating mass, and a ring adapted to surround the oscillating mass.

7326156, Feb 5, 2008

Oct 24, 2003

10/693338

William S. Dworzan - Santa Ana CA, US

A63B 21/22
A63B 23/14

482110, 482 44

A gyroscopic exercise device has a pair of handles attached to a housing. A user holds and rotates the handles along a cone-like path causing precession of a rotor, which is rotating about its spin axis, to provide resistance to the user. The device has a ring guide that holds ends of a shaft, which is coupled to the rotor. The periphery of the ring guide and the ends of the shaft are within a circular race defined by the housing. A motor attached to the ring guide drives a wheel that rotates the rotor about a spin axis by using energy provided by batteries in one of the handles. The energy passes through a conducting conduit that rotates about the precession axis. The ring guide, motor, and rotor can rotate together during precession of the rotor.

7409741, Aug 12, 2008

Jun 24, 2003

10/603902

William S. Dworzan - Santa Ana CA, US

A61C 17/00
A46B 13/02

15 221, 433122

A toothbrush provides a head with bristles, a neck and a handle. An eccentrically rotational weight is engaged for rotation with a motor, the weight disposed within the head. The motor is disposed within the handle. The head and neck are integrally formed with a natural resonance frequency of vibration approximately equal to the rotational speed of the motor and synchronized therewith.

D617467, Jun 8, 2010

Jun 24, 2009

29/315434

William S. Dworzan - Santa Ana CA, US

2803

D24211

20030079304, May 1, 2003

Jul 5, 2002

10/189632

William Dworzan - Santa Ana CA, US

A61C017/22

015/022100

Toothbrushes that utilize a rotating eccentric weight positioned in or near the head of the toothbrush to cause movement of the head, and methods relating to same.

52223272, Jun 29, 1993

Jul 22, 1991

7/733638

Donna M. Fellows - Martinez CA
William S. Dworzan - Orange CA

E05F 1500

49139

A side mount garage door operator capable of being positioned on either the ceiling or end wall of a garage at either side of the garage door on a frame unit, the operator providing a clutch for disengaging the drive motor from the garage door in the absence of electric power and having a manual graspable handle operated by a solenoid when power is present and operable manually in the absence of power. Novel limit means having limits which is on the end of an axially movable bar which is moved by a follower riding in a spiral groove in the base of a disk such as a gear connected to the drive shaft.